/*
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 * and open the template in the editor.
 */
package edu.uq.comp7705.servlet;

import edu.uq.comp7705.entity.Person;
import edu.uq.comp7705.entity.presentation.FacebookUser;
import edu.uq.comp7705.entity.presentation.FacebookUser;
import edu.uq.comp7705.util.UtilDB;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author javierpanchi
 */
public class FacebookServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String path = "";
        try {
            String user = request.getParameter("idFacebook");
            UtilDB utilDB = new UtilDB();
            Person person = utilDB.getPersonByFacebookId(user);
            if (person == null) {
                path = "jsp/profile.jsp";
            } else {
                path = "/jsp/session.jsp";
                request.getSession().setAttribute("person", person);
            }
            
            List<FacebookUser> facebookList = new ArrayList<FacebookUser>();
            Enumeration enumeration = request.getParameterNames();
            while (enumeration.hasMoreElements()) {
                String parameterName = (String) enumeration.nextElement();
                if (parameterName.startsWith("facebook")) {
                    facebookList.add(new FacebookUser(request.getParameter(parameterName).split("\\|")[0], request.getParameter(parameterName).split("\\|")[1]));
                }
            }
            request.getSession().setAttribute("facebookList", facebookList);

            RequestDispatcher rd = request.getRequestDispatcher(path);
            rd.forward(request, response);
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
